Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
METHOD FOR PRODUCING AN AGGREGATE, AND AGGREGATE
The invention relates to a method for producing an aggregate comprising the steps of providing a starting product comprising at least 20% by mass magnesium silicate hydrate, crushing to a fineness corresponding to a BET surface area of 0.1 m2/g or finer, homogenizing the starting product, and at least partially dewatering the starting product of bound water by means of thermal treatment in a thermal treatment unit, contacting the dewatered starting product with CO2, wherein CO2 reacts with the dewatered magnesium silicate hydrate and the CO2 is bound in the resulting magnesium carbonate hydrate and/or magnesium carbonate, and compressing and compacting the dewatered starting product before or after contacting with CO2 to solids for producing the aggregate. The invention also relates to an aggregate.
METHOD FOR PRODUCING AN AGGREGATE, AND AGGREGATE
The invention relates to a method for producing an aggregate comprising the steps of providing a starting product comprising at least 20% by mass magnesium silicate hydrate, crushing to a fineness corresponding to a BET surface area of 0.1 m2/g or finer, homogenizing the starting product, and at least partially dewatering the starting product of bound water by means of thermal treatment in a thermal treatment unit, contacting the dewatered starting product with CO2, wherein CO2 reacts with the dewatered magnesium silicate hydrate and the CO2 is bound in the resulting magnesium carbonate hydrate and/or magnesium carbonate, and compressing and compacting the dewatered starting product before or after contacting with CO2 to solids for producing the aggregate. The invention also relates to an aggregate.
METHOD FOR PRODUCING AN AGGREGATE, AND AGGREGATE
BELLMANN FRANK (Autor:in)
13.02.2025
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME